1. After going through major upgrades, China’s deep-sea manned submersible Jiaolong completes its first test dive in east China’s coastal city of Qingdao on February 28, 2019. Photo by Zhang Jingang
2. The world’s longest 3D printed concrete bridge is unveiled in the Wisdom Bay Innovative Park in Baoshan district, Shanghai, on Dec.8, 2018. Photo by Yan Daming
3. The “5G Global Innovation Port”, the world’s first comprehensive 5G application demonstration and joint innovation platform, is officially put into operation in the North Bund area of Hongkou district, Shanghai, on September 10, 2019. Photo by Wang Gang
4. Photo shows the highway-railway bridge over the Yangtze River in Tongling city, east China’s Anhui province. Photo by Chen Chen
5. Photo shows a model of the Chang’e-4 probe. Photo by Long Wei
6. A Fuxing bullet train runs on the Zhangjiakou-Hohhot high-speed rail in Ulanqab, north China’s Inner Mongolia Autonomous Region, June 21, 2019. Photo by Tang Zhe
7. Photo shows the Wuhan Yangsi Port Yangtze River Bridge in central China’s Hubei province. Photo by Zhao Guangliang
8. Children watch a robot demonstration in a community of Yanshan University in Haigang district, Qinhuangdao city in north China’s Hebei province, Feb 15, 2019. Photo by Cao Jianxiong
9. Children watch robots dance at a science and technology museum in Nantong, Jiangsu province, Sept. 7, 2019. Photo by XuPeiqin
10. Technicians assemble an eight-axis multi-purpose UAV on August 5, 2019. Photo by GengYuhe
11. The Three Gorges Dam (shot by UAV) is in stable operation in Zigui county, Yichang city, central China’s Hubei province on July 13, 2019. Photo by Wang Gang
12. A Long March-2C carrier rocket carrying a group of new remote sensing satellites lifts off from the Xichang Satellite Launch Center in southwest China’s Sichuan province, on July 26, 2019. The satellites, belonging to the Yaogan-30 family, then enters the planned orbits. Photo by Zou Sen.